I don't use it that much but when I have I put the Clear Zoom on the rear dial (bottom arrow). 2 clicks for max...140mm?
I really should get round to reading the manual, lol.
Sorry if this isn't very helpful.
Thanks. Worrying stuff though.
...and I just tried a wall at f22....to find this:
So depressed, then I thought I'll try rocket blowing all the nooks n crannies...I failed and it was still there. Hrrrmmmph.
Next step, a vacuum cleaner attachment...nothing, UNTIL I opened up the flash and...